dubnium

From Dubna +‎ -ium, named after Dubna, Moscow Oblast, Russia, the site of the Joint Institute for Nuclear Research, which discovered the element.

• (UK) enPR: dŭb'nēəm, IPA^(key): /ˈdʌbniəm/

• Audio (Southern England):

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• (US) enPR: do͞ob'nēəm, IPA^(key): /ˈduːbniəm/

• Audio (General American); /ˈduːbniəm/:

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• Audio (General American); /ˈdʌbniəm/:

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dubnium (uncountable)

1. A transuranic chemical element (symbol Db) with atomic number 105.
2. (chemistry, obsolete) A rejected name for rutherfordium.

• eka-tantalum (used before the element was discovered)
• hahnium (proposed by American scientists, but rejected; still used by some Western scientists; see also hassium)
• joliotium (proposed by the IUPAC, but rejected)
• nielsbohrium (proposed by Russian scientists, but rejected)
• unnilpentium (used before the element had been officially named to avoid disputes between Western and Russian scientists over "hahnium" and "dubnium" respectively)

• Dubna
• dubnate

From Russian Дубна́ (Dubná) +‎ -ium.

dubnium n (singular definite dubniummet, not used in plural form)

1. dubnium

   Synonyms: hahnium, (dated) unnilpentium

   • 2004, Gyldendal Mini-lex. Fysik, Gyldendal Uddannelse, →ISBN, page 144:

     Grundstoffet dubnium (105) har en halveringstid på omkring et sekund, ...

     (please add an English translation of this quotation)

   • 2006, Bogen Om Grundstofferne, Gyldendal Uddannelse, →ISBN, page 224:

     ... og det samme gør flere af datterprodukterne dubnium- 258, ...

     (please add an English translation of this quotation)

• “dubnium” in Den Danske Ordbog

Borrowed from English dubnium or Russian ду́бний (dúbnij). Named after Dubna in Russia.

• IPA^(key): /ˈdʏp.ni.ʏm/

• Audio:

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• Hyphenation: dub‧ni‧um

dubnium n (uncountable)

1. dubnium

English dubnium.

dubnium (genitive dubniumi, partitive dubniumi or dubniumit)

1. dubnium

• dubnium in Sõnaveeb (Eesti Keele Instituut)

Internationalism (see English dubnium).

• IPA^(key): /ˈdubnium/, [ˈdubnium]
• Rhymes: -ubnium
• Syllabification^(key): dub‧ni‧um
• Hyphenation^(key): dub‧ni‧um

dubnium

1. dubnium

• IPA^(key): /dyb.njɔm/

• Audio:

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dubnium m (plural dubniums)

1. dubnium

• IPA^(key): [ˈdubnijum]
• Hyphenation: dub‧ni‧um
• Rhymes: -um

dubnium (usually uncountable, plural dubniumok)

1. dubnium (chemical element)

• (Classical Latin) IPA^(key): [ˈdʊb.ni.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈd̪ub.ni.um]

dubnium n (genitive dubniī); second declension

1. dubnium

Second-declension noun (neuter).

From English dubnium.

• IPA^(key): /dubniom/
• Rhymes: -iom, -jom, -om

dubnium

1. (chemistry) dubnium (chemical element)

• hahnium

• IPA^(key): /ˈdubnɪjʊm/

dubnium n

1. dubnium (element)

• “dubnium”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak), https://slovnik.juls.savba.sk, 2003–2025
• dubnium on the Slovak Wikipedia.Wikipedia ^sk

dubnium n (uncountable)

1. dubnium